I have seen everything from permanently attached legs, to removable legs held on with clips or velcro to legs that are merely implied to be a part of the puppet. One of my puppets had legs made exactly like arms are made. They are fastened to the front of the body with doll joints, and the foam of the body extends several inches below this point, giving a bit of "fudge-factor" for performance.
Dwo- Be careful of the words you use:
wallah:
wal·lah
Pronunciation: 'wä-l&, in combination usually "wä-l&
Function: noun
Etymology: Hindi -vAlA one in charge, from Skt pAla protector, from pAlayati, pArayati he guards; akin to Sanskrit piparti he brings over, saves, Old English faran to go -- more at FARE
: a person who is associated with a particular work or who performs a specific duty or service -- usually used in combination <the book wallah was an itinerant peddler -- George Orwell>
I believe the term you were looking for was "voila".
voila
voi·la /vwä-'lä/
Function: interjection
Etymology: French, literally, see there
-- used to call attention, to express satisfaction or approval, or to suggest an appearance as if by magic